After several years of fruitful discussions, on 16 November 2006 under the initiative of Argentine, Brazil and Uruguay, the constitutional meeting of the South West Atlantic Hydrographic Commission (SWAtHC) took place in Rio de Janeiro, Brazil. The Statutes were signed on 14 December 2006 and the first formal meeting was held in Buenos Aires City, Argentine on 10 April 2007. The Commission´s first Chairman was Rear Admiral Andrés Roque Di Vincenzo (Argentine). Main achievements have been the development of a regional Cartographic Plan, establishment of a Planning Commission to coordinate INT Charts and ENC production and the acceptance of Bolivia and Paraguay as Associate Members.